Furnace.



Patented July l0, |900.

R. ZEILLER.

FURNACE.

(Applicatun med Sept. 80, 1899.)

2 Sheets-'Shouf l.

(No Mdel.)

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No. 653,433. Patented luly I0, |900. R. ZEILLER.

FURNACE (Application mad sept. so, 1899.) 2 sheetsshaa 2.

(No Model.)

i NITRD STATES ROBERT zEILLER, or' lMunrcI-I, GERMANY.

FU RNACE.

SPECIFICATION forming part of Letters Patent N0. 653,433, dated July 10, 1900. Application filed September 30, 1899. Serial No, l732,228. (No model.)

T0 all whom, t mayfcdncer'ni Be itkuown that I, ROBERT ZETILLER, a sub-Y ject of the Kingof Bavaria, residing at Mu? nich, Kingdom ofi-Bavaria Empire of Germany,- have invented 'certainnew and useful Improved Furnaces, of which the following is aspeciication.

The present invention relates to smoke-consuming furnaces; and it consists of the de? tails of construction hereinafter 'set' forth, and particularly pointed' out in theclailns.

Referring t-o the accompanying drawings, in which the letters. of reference refer to the same parts in the Vseveral views, Figure l is a front elevation ofthe furnace. Fig.V 2 shows a longitudinal section. Fig. 3 is a longitudinal section of a` modification. Fig. et is a transverse section ofthe furnace shown in Fig. 3. Fig. 5 is alongitudinal section show'- ing the improved iire-wall., Fig. 6 is a horil zontal section on the line C D of Fig. 5.

The invention consists in providing a vseries of transversely-arranged depending ribs h h, of freproof material, the said ribs depending from the top of the interior of the fire-box to-4 ward the top of the grate.l These ribs serve to detain the gases of combustion, keeping' them in contact with the glowing mass of fuel instead of their being allowed to pass off directly to the dues. These ribs are advan. tageously made longer toward the back of the grate, as shown in the drawings, so as to cause the fire-gases to follow the incline of the grate and also to cause them to make a longer passage between the hot ribs at the rear end of the grate, so as to more effectually burn and thoroughly consume them.

According to the form of embodying the invention illustrated in Figs. 3 and 4 a series of ribs h are employed, having their lower edge curved or arched', Fig. 4,' and having alternate ribs provided with openings o o at the upper part, so that the gases of combustion will be forced to take a zigzag path between the ribs, as indicated by the arrows in Fig. 3, the said gases being thus forced at intervals downwardly onto the glowing mass of fuel and upwardly between the hot ribs and being elfectivelyvconsu med. In some cases secondary airlfeed may be introduced into the openings O by means of the pipes r r, or instead of air fluid-fuel may be introduced through the said pipes or agents which assist combustion, such as benzene, naphtha, or the like. The ribs are advantageously provided with a thickened lower edge, as shown at Fig. 3, the object of which is twofold-iirstmo strengthen VVthe said ribs, and, secondly, the construction Vthe ends are advantageously beveled olf to conformv to the slant or incline of the grate.

' A further arrangement is represented in Fig. 5 in a longitudinal section, and in Fig. 6 in a cross-section on the line C D. One or several ribs depending from the top of the interior of the fire-box toward the top of the grate are also arranged, whereby said ribs are provided with holes or cond nits fi. These conduits,

in connection with the horizontal main conduit la, serve for the direct secondary air-feed into the fireplace. The secondary air-feed in this manner has a twofold advantage-first,

the ribs 77, are cooled, and, secondly, the secondary air when passing through the holes or conduits 'L' is sufficiently heated. The secondary air when passing through the conduits or holes/t' causes the combustion-gases to whirl or eddy, by which an energetic mixing of the same is produced. Behind the last rib h a vaulted fire-bridge f is arranged, by which particles of ashes and fuel are retained and by which at the same time an energetic contact of gases of combustion with the last rib h again takes place.

I claim as my invention- 1. In a furnace, the combination of a series of transversely-disposed ribs extending downwardly from the roof of the tire-box, said ribs depending for a distance increasing toward the smoke-exit of the furnace, substantially as and for the purposes set forth.

2. In a furnace, the combinationof a series of transversely-disposed ribs extending down wardly from the roof of the fire-box, said ribs of transversely-disposed ribs extending doWnwardly from the roof of the fire-box, said ribs having apertures connecting theirinterspaces and arranged in proximity to the roof of the re-box, and means for bringing external air 1 from the front of the furnace and delivering it into said apertures, substantially as and for the purposes set forth.

4. In a furnace, the combination of a series of transversely-disposed ribs extending downwardly from the roof of the fire-box,the alternate ribs having apertures therein,and means for bringing external air from the front of the furnace and delivering it into said aper tures, substantially as set forth.

5. In afurnace, the combination of a series of transversely-disposed ribs extending downwardly from the roof of the fire-box, said ribs depending for a distance increasing toward the smoke-exit of the furnace, said ribs having an enlarged lower edge, substantially as and for the purposes set forth. Y

G. In afurnace, the combination of a series of transversely-disposed ribs,extending downwardly from the roof of the fire-box, said ribs having apertures connecting their interspaces and arranged in proximity to the roof of the lire-box, and a tube extending through the front of the furnace and along the upper portion of the fire-box and terminating in each of the said apertures, substantially as and for the purposes set forth.

7. In a furnace, the combination of a series of transversely-disposed ribs extending downwardly from the roof of the fire-box, said ribs depending for a distance increasing toward the smoke-exit of the furnace and a deflectorwall at the rear of the fire-box extending upwardly and inwardly toward said ribs, substantially as and for the purposes set forth.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

ROBERT ZEILLER. lVitnesses:

EMIL IIENZEL, ALBERT SEECINBACH. 

